public ArrayList getEdgeParticles()
{
if (_edgePositions.Count == 0)
{
getEdgePositions();
}
if (_edgeParticles.Count == 0)
{
CircleParticle cp1 = new CircleParticle(0, 0, 1, false, 1, 0.3, 0, Color.Black, "edgeparticle");
cp1.setCollidable(false);
cp1.setVisible(false);
APEngine.addParticle(cp1);
CircleParticle cp2 = new CircleParticle(0, 0, 1, false, 1, 0.3, 0, Color.Black, "edgeparticle");
cp2.setCollidable(false);
cp2.setVisible(false);
APEngine.addParticle(cp2);
CircleParticle cp3 = new CircleParticle(0, 0, 1, false, 1, 0.3, 0, Color.Black, "edgeparticle");
cp3.setCollidable(false);
cp3.setVisible(false);
APEngine.addParticle(cp3);
CircleParticle cp4 = new CircleParticle(0, 0, 1, false, 1, 0.3, 0, Color.Black, "edgeparticle");
cp4.setCollidable(false);
cp4.setVisible(false);
APEngine.addParticle(cp4);
_edgeParticles.Add(cp1);
_edgeParticles.Add(cp2);
_edgeParticles.Add(cp3);
_edgeParticles.Add(cp4);
updateEdgeParticles();
}
return(_edgeParticles);
}
public void update(double dt)
{
sp = Math.Max(-maxTorque, Math.Min(maxTorque, sp + av));
double dx = -curr.y;
double dy = curr.x;
double len = Math.Sqrt(dx * dx + dy * dy);
dx = dx / len;
dy = dy / len;
curr.x = curr.x + sp * dx;
curr.y = curr.y + sp * dy;
double ox = prev.x;
double oy = prev.y;
prev.x = curr.x;
double px = prev.x;
//= curr.x
prev.y = curr.y;
double py = prev.y;
//= curr.y
curr.x = curr.x + APEngine.getDamping() * (px - ox);
curr.y = curr.y + APEngine.getDamping() * (py - oy);
double clen = Math.Sqrt(curr.x * curr.x + curr.y * curr.y);
double diff = (clen - wr) / clen;
curr.x = curr.x - curr.x * diff;
curr.y = curr.y - curr.y * diff;
}
protected Graphics getDefaultContainer()
{
if (APEngine.getDefaultContainer() == null)
{
String err = "";
err += "You must set the defaultContainer property of the APEngine class ";
err += "if you wish to use the default paint methods of the constraints";
throw new Error1();
}
Graphics parentContainer = APEngine.getDefaultContainer();
return(parentContainer);
}
public Graphics getDefaultContainer()
{
if (APEngine.getDefaultContainer() == null)
{
String err = "";
err += "You must set the defaultContainer property of the APEngine class ";
err += "if you wish to use the default paint methods of the particles";
throw new Error1();
//](err)
}
Graphics parentContainer = APEngine.getDefaultContainer();
return(parentContainer);
}
public virtual void update(double dt2)
{
if (_fixed)
{
return;
return;
}
addForce(APEngine.force);
addMasslessForce(APEngine.masslessForce);
temp.copy(curr);
Vector nv = getVelocity().plus(forces.multEquals(dt2));
curr.plusEquals(nv.multEquals(APEngine.getDamping()));
prev.copy(temp);
forces.setTo(0, 0);
}
public virtual void resolveCollision(Vector mtd, Vector vel, Vector n, double d, double o)
{
curr.plusEquals(mtd);
switch (APEngine.getCollisionResponseMode())
{
case APEngine.STANDARD:
setVelocity(vel);
break;
// Exit Select
case APEngine.SELECTIVE:
if (!isColliding)
{
setVelocity(vel);
}
isColliding = true;
break;
// Exit Select
case APEngine.SIMPLE:
break;
// Exit Select
}
}